Provided is a wet chemical treating device for a printed circuit board, comprising a treating component and a propeller; the treating component is disposed on a printed circuit board wet chemical treatment line; the propeller comprises at least one first propeller (3) or at least one second propeller (92), the at least one first propeller (3) is accommodated in the treating component, and is used to transfer the treating liquid from a liquid storage tank (1) to a chemical treating position; the at least one second propeller (92) is used to generate turbulence at the chemical treating position.
